src/gtk/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "menu.h"
  14 #endif
  15
  16 #include "wx/menu.h"
  17 #include "wx/log.h"
  18 #include "wx/intl.h"
  19
  20 //-----------------------------------------------------------------------------
  21 // wxMenuBar
  22 //-----------------------------------------------------------------------------
  23
  24 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
  25
  26 wxMenuBar::wxMenuBar()
  27 {
  28   m_needParent = FALSE; // hmmm
  29
  30   PreCreation( NULL, -1, wxDefaultPosition, wxDefaultSize, 0, "menu" );
  31
  32   m_menus.DeleteContents( TRUE );
  33
  34   m_widget = gtk_handle_box_new();
  35
  36   m_menubar = gtk_menu_bar_new();
  37
  38   gtk_container_add( GTK_CONTAINER(m_widget), m_menubar );
  39
  40   gtk_widget_show( m_menubar );
  41
  42   PostCreation();
  43
  44   Show( TRUE );
  45 };
  46
  47 void wxMenuBar::Append( wxMenu *menu, const wxString &title )
  48 {
  49   m_menus.Append( menu );
  50   menu->m_title = title;    // ??????
  51
  52   int pos;
  53   do {
  54     pos = menu->m_title.First( '&' );
  55     if (pos != -1) menu->m_title.Remove( pos, 1 );
  56   } while (pos != -1);
  57
  58   GtkWidget *root_menu;
  59   root_menu = gtk_menu_item_new_with_label( WXSTRINGCAST(menu->m_title) );
  60   gtk_widget_show( root_menu );
  61   gtk_menu_item_set_submenu( GTK_MENU_ITEM(root_menu), menu->m_menu );
  62
  63   gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), root_menu );
  64 };
  65
  66 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
  67 {
  68   if (menu->m_title == menuString)
  69   {
  70     int res = menu->FindItem( itemString );
  71     if (res != -1) return res;
  72   };
  73   wxNode *node = menu->m_items.First();
  74   while (node)
  75   {
  76     wxMenuItem *item = (wxMenuItem*)node->Data();
  77     if (item->IsSubMenu())
  78       return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
  79     node = node->Next();
  80   };
  81   return -1;
  82 };
  83
  84 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
  85 {
  86   wxNode *node = m_menus.First();
  87   while (node)
  88   {
  89     wxMenu *menu = (wxMenu*)node->Data();
  90     int res = FindMenuItemRecursive( menu, menuString, itemString);
  91     if (res != -1) return res;
  92     node = node->Next();
  93   };
  94   return -1;
  95 };
  96
  97 // Find a wxMenuItem using its id. Recurses down into sub-menus
  98 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
  99 {
 100   wxMenuItem* result = menu->FindItem(id);
 101
 102   wxNode *node = menu->m_items.First();
 103   while ( node && result == NULL ) {
 104     wxMenuItem *item = (wxMenuItem*)node->Data();
 105     if ( item->IsSubMenu() )
 106       result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
 107     node = node->Next();
 108   };
 109
 110   return result;
 111 };
 112
 113 wxMenuItem* wxMenuBar::FindMenuItemById( int id ) const
 114 {
 115   wxMenuItem* result = 0;
 116   wxNode *node = m_menus.First();
 117   while (node && result == 0)
 118   {
 119     wxMenu *menu = (wxMenu*)node->Data();
 120     result = FindMenuItemByIdRecursive( menu, id );
 121     node = node->Next();
 122   }
 123   return result;
 124 }
 125
 126 void wxMenuBar::Check( int id, bool check )
 127 {
 128   wxMenuItem* item = FindMenuItemById( id );
 129   if (item) item->Check(check);
 130 };
 131
 132 bool wxMenuBar::Checked( int id ) const
 133 {
 134   wxMenuItem* item = FindMenuItemById( id );
 135   if (item) return item->IsChecked();
 136   return FALSE;
 137 };
 138
 139 void wxMenuBar::Enable( int id, bool enable )
 140 {
 141   wxMenuItem* item = FindMenuItemById( id );
 142   if (item) item->Enable(enable);
 143 };
 144
 145 bool wxMenuBar::Enabled( int id ) const
 146 {
 147   wxMenuItem* item = FindMenuItemById( id );
 148   if (item) return item->IsEnabled();
 149   return FALSE;
 150 };
 151
 152 //-----------------------------------------------------------------------------
 153 // wxMenu
 154 //-----------------------------------------------------------------------------
 155
 156 void gtk_menu_clicked_callback( GtkWidget *widget, gpointer data )
 157 {
 158   wxMenu *menu = (wxMenu*)data;
 159   int id = menu->FindMenuIdByMenuItem(widget);
 160
 161   wxASSERT( id != -1 ); // should find it!
 162
 163   if (!menu->IsEnabled(id))
 164     return;
 165
 166   wxCommandEvent event( wxEVENT_TYPE_MENU_COMMAND, id );
 167   event.SetEventObject( menu );
 168   event.SetInt(id );
 169   wxWindow *win = menu->GetInvokingWindow();
 170   if (win) win->GetEventHandler()->ProcessEvent( event );
 171 };
 172
 173 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem,wxObject)
 174
 175 wxMenuItem::wxMenuItem()
 176 {
 177   m_id = ID_SEPARATOR;
 178   m_isCheckMenu = FALSE;
 179   m_isChecked = FALSE;
 180   m_isEnabled = TRUE;
 181   m_subMenu = NULL;
 182   m_menuItem = NULL;
 183 };
 184
 185 void wxMenuItem::SetText(const wxString& str)
 186 {
 187   m_text = "";
 188   for ( const char *pc = str; *pc != '\0'; pc++ ) {
 189     if ( *pc == '&' )
 190       pc++; // skip it
 191
 192     m_text << *pc;
 193   }
 194 }
 195
 196 void wxMenuItem::Check( bool check )
 197 {
 198   wxCHECK_RET( IsCheckable(), _("Can't check uncheckable item!") )
 199
 200   m_isChecked = check;
 201   gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 202 }
 203
 204 bool wxMenuItem::IsChecked() const
 205 {
 206   wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 207
 208   bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 209
 210   wxASSERT( bIsChecked == m_isChecked ); // consistency check
 211
 212   return bIsChecked;
 213 }
 214
 215 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 216
 217 wxMenu::wxMenu( const wxString &title )
 218 {
 219   m_title = title;
 220   m_items.DeleteContents( TRUE );
 221   m_invokingWindow = NULL;
 222   m_menu = gtk_menu_new();  // Do not show!
 223 };
 224
 225 void wxMenu::AppendSeparator()
 226 {
 227   wxMenuItem *mitem = new wxMenuItem();
 228   mitem->SetId(ID_SEPARATOR);
 229
 230   GtkWidget *menuItem = gtk_menu_item_new();
 231   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 232   gtk_widget_show( menuItem );
 233   mitem->SetMenuItem(menuItem);
 234   m_items.Append( mitem );
 235 };
 236
 237 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 238 {
 239   wxMenuItem *mitem = new wxMenuItem();
 240   mitem->SetId(id);
 241   mitem->SetText(item);
 242   mitem->SetHelpString(helpStr);
 243   mitem->SetCheckable(checkable);
 244   const char *text = mitem->GetText();
 245   GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label(text)
 246                                   : gtk_menu_item_new_with_label(text);
 247   mitem->SetMenuItem(menuItem);
 248
 249   gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 250                       GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 251                       (gpointer*)this );
 252
 253   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 254   gtk_widget_show( menuItem );
 255   m_items.Append( mitem );
 256 };
 257
 258 void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
 259 {
 260   wxMenuItem *mitem = new wxMenuItem();
 261   mitem->SetId(id);
 262   mitem->SetText(text);
 263
 264   GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText());
 265   mitem->SetHelpString(helpStr);
 266   mitem->SetMenuItem(menuItem);
 267   mitem->SetSubMenu(subMenu);
 268
 269   gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 270   gtk_menu_append( GTK_MENU(m_menu), menuItem );
 271   gtk_widget_show( menuItem );
 272   m_items.Append( mitem );
 273 };
 274
 275 int wxMenu::FindItem( const wxString itemString ) const
 276 {
 277   wxString s( itemString );
 278
 279   int pos;
 280   do {
 281     pos = s.First( '&' );
 282     if (pos != -1) s.Remove( pos, 1 );
 283   } while (pos != -1);
 284
 285   wxNode *node = m_items.First();
 286   while (node)
 287   {
 288     wxMenuItem *item = (wxMenuItem*)node->Data();
 289     if (item->GetText() == s)
 290       return item->GetId();
 291     node = node->Next();
 292   };
 293
 294   return -1;
 295 };
 296
 297 void wxMenu::Enable( int id, bool enable )
 298 {
 299   wxMenuItem *item = FindItem(id);
 300   if ( item )
 301     item->Enable(enable);
 302 };
 303
 304 bool wxMenu::IsEnabled( int id ) const
 305 {
 306   wxMenuItem *item = FindItem(id);
 307   if ( item )
 308     return item->IsEnabled();
 309   else
 310     return FALSE;
 311 };
 312
 313 void wxMenu::Check( int id, bool enable )
 314 {
 315   wxMenuItem *item = FindItem(id);
 316   if ( item )
 317     item->Check(enable);
 318 };
 319
 320 bool wxMenu::IsChecked( int id ) const
 321 {
 322   wxMenuItem *item = FindItem(id);
 323   if ( item )
 324     return item->IsChecked();
 325   else
 326     return FALSE;
 327 };
 328
 329 void wxMenu::SetLabel( int id, const wxString &label )
 330 {
 331   wxMenuItem *item = FindItem(id);
 332   if ( item )
 333     item->SetText(label);
 334 };
 335
 336 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 337 {
 338   wxNode *node = m_items.First();
 339   while (node)
 340   {
 341     wxMenuItem *item = (wxMenuItem*)node->Data();
 342     if (item->GetMenuItem() == menuItem)
 343       return item->GetId();
 344     node = node->Next();
 345   };
 346
 347   return -1;
 348 };
 349
 350 wxMenuItem *wxMenu::FindItem(int id) const
 351 {
 352   wxNode *node = m_items.First();
 353   while (node) {
 354     wxMenuItem *item = (wxMenuItem*)node->Data();
 355     if ( item->GetId() == id )
 356       return item;
 357     node = node->Next();
 358   };
 359
 360   wxLogDebug(_("wxMenu::FindItem: item %d not found."), id);
 361
 362   return NULL;
 363 }
 364
 365 void wxMenu::SetInvokingWindow( wxWindow *win )
 366 {
 367   m_invokingWindow = win;
 368 };
 369
 370 wxWindow *wxMenu::GetInvokingWindow()
 371 {
 372   return m_invokingWindow;
 373 };
 374
 375